高速列车表面随行波微细结构减阻技术研究

Technical Research on Resistance Reduction with Surface Traveling Wave Fine Structure of High Speed Trains

针对高速列车车头流线型区域、转向架区域隔墙部位、风挡区域端墙部位共3个具备减阻潜力的部位布置了不同形状、尺寸及布置方式的随行波微细结构,通过仿真计算和风洞试验,获得了利用表面随行波微细结构进行减阻应用的可行性方案。仿真和试验结果表明,流线型部位不宜采用随行波微细结构;转向架区域隔墙部位和风挡区域端墙部位等处进行凹坑型表面随行波微细结构改形处理后具有良好的减阻效果。

In view of the three potentially resistance reducing parts of the streamline section of head of the high speed train,the partition wall of the bogie section and the end wall of the vestibule diaphragm,the traveling wave fine structures of different shapes,sizes and arrangement modes are arranged.Via simulation calculation and air tunnel test,the feasibility scheme of resistance reduction applying the surface traveling wave fine structure is obtained.The simulation and test results show that the traveling wave fine structure is not appropriate to the streamline part;however,after concave pit type reform of the surface traveling wave fine structure at the partition wall of the bogie section and the end wall of the vestibule diaphragm,the fairly good resistance reduction effect is obtained.